let idCardNoUtil = {
  /*省,直辖市代码表*/
  provinceAndCitys: {11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",
      31:"上海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖南",44:"广东",
      45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",
      65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"},

  /*每位加权因子*/
  powers: ["7","9","10","5","8","4","2","1","6","3","7","9","10","5","8","4","2"],

  /*第18位校检码*/
  parityBit: ["1","0","X","9","8","7","6","5","4","3","2"],

  /*性别*/
  genders: {male:"M",female:"F"},

  /*校验地址码*/
  checkAddressCode: function(addressCode){
      var check = /^[1-9]\d{5}$/.test(addressCode);
      if(!check) return false;
      if(idCardNoUtil.provinceAndCitys[parseInt(addressCode.substring(0,2))]){
          return true;
      }else{
          return false;
      }
  },

  /*校验日期码*/
  checkBirthDayCode: function(birDayCode){
      var check = /^[1-9]\d{3}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))$/.test(birDayCode);
      if(!check) return false;
      var yyyy = parseInt(birDayCode.substring(0,4),10);
      var mm = parseInt(birDayCode.substring(4,6),10);
      var dd = parseInt(birDayCode.substring(6),10);
      var xdata = new Date(yyyy,mm-1,dd);
      if(xdata > new Date()){
          return false;//生日不能大于当前日期
      }else if ( ( xdata.getFullYear() == yyyy ) && ( xdata.getMonth () == mm - 1 ) && ( xdata.getDate() == dd ) ){
          return true;
      }else{
          return false;
      }
  },

  /*计算校检码*/
  getParityBit: function(idCardNo){
      var id17 = idCardNo.substring(0,17);
      /*加权 */
      var power = 0;
      for(var i=0;i<17;i++){
          power += parseInt(id17.charAt(i),10) * parseInt(idCardNoUtil.powers[i]);
      }
      /*取模*/
      var mod = power % 11;
      return idCardNoUtil.parityBit[mod];
  },

  /*验证校检码*/
  checkParityBit: function(idCardNo){
      var parityBit = idCardNo.charAt(17).toUpperCase();
      if(idCardNoUtil.getParityBit(idCardNo) == parityBit){
          return true;
      }else{
          return false;
      }
  },

  /*校验15位或18位的身份证号码*/
  checkIdCardNo: function(idCardNo){
      //15位和18位身份证号码的基本校验
      var check = /^\d{15}|(\d{17}(\d|x|X))$/.test(idCardNo);
      if(!check) return false;
      //判断长度为15位或18位
      if(idCardNo.length==15){
          return idCardNoUtil.check15IdCardNo(idCardNo);
      }else if(idCardNo.length==18){
          return idCardNoUtil.check18IdCardNo(idCardNo);
      }else{
          return false;
      }
  },

  //校验15位的身份证号码
  check15IdCardNo: function(idCardNo){
      //15位身份证号码的基本校验
      var check = /^[1-9]\d{7}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))\d{3}$/.test(idCardNo);
      if(!check) return false;
      //校验地址码
      var addressCode = idCardNo.substring(0,6);
      check = idCardNoUtil.checkAddressCode(addressCode);
      if(!check) return false;
      var birDayCode = '19' + idCardNo.substring(6,12);
      //校验日期码
      check = idCardNoUtil.checkBirthDayCode(birDayCode);
      if(!check) return false;
      //验证校检码
      return idCardNoUtil.checkParityBit(idCardNo);
  },

  //校验18位的身份证号码
  check18IdCardNo: function(idCardNo){
      //18位身份证号码的基本格式校验
      var check = /^[1-9]\d{5}[1-9]\d{3}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))\d{3}(\d|x|X)$/.test(idCardNo);
      if(!check) return false;
      //校验地址码
      var addressCode = idCardNo.substring(0,6);
      check = idCardNoUtil.checkAddressCode(addressCode);
      if(!check) return false;
      //校验日期码
      var birDayCode = idCardNo.substring(6,14);
      check = idCardNoUtil.checkBirthDayCode(birDayCode);
      if(!check) return false;
      //验证校检码
      return idCardNoUtil.checkParityBit(idCardNo);
  },

  formateDateCN: function(day){
      var yyyy =day.substring(0,4);
      var mm = day.substring(4,6);
      var dd = day.substring(6);
      return yyyy + '-' + mm +'-' + dd;
  },

  //获取信息
  getIdCardInfo: function(idCardNo){
      var idCardInfo = {
          gender:"",  //性别
          birthday:"" // 出生日期(yyyy-mm-dd)
      };
      if(idCardNo.length==15){
          var aday = '19' + idCardNo.substring(6,12);
          idCardInfo.birthday=idCardNoUtil.formateDateCN(aday);
          if(parseInt(idCardNo.charAt(14))%2==0){
              idCardInfo.gender=idCardNoUtil.genders.female;
          }else{
              idCardInfo.gender=idCardNoUtil.genders.male;
          }
      }else if(idCardNo.length==18){
          var aday = idCardNo.substring(6,14);
          idCardInfo.birthday=idCardNoUtil.formateDateCN(aday);
          if(parseInt(idCardNo.charAt(16))%2==0){
              idCardInfo.gender=idCardNoUtil.genders.female;
          }else{
              idCardInfo.gender=idCardNoUtil.genders.male;
          }

      }
      return idCardInfo;
  },

  /*18位转15位*/
  getId15: function(idCardNo){
      if(idCardNo.length==15){
          return idCardNo;
      }else if(idCardNo.length==18){
          return idCardNo.substring(0,6) + idCardNo.substring(8,17);
      }else{
          return null;
      }
  },

  /*15位转18位*/
  getId18: function(idCardNo){
      if(idCardNo.length==15){
          var id17 = idCardNo.substring(0,6) + '19' + idCardNo.substring(6);
          var parityBit = idCardNoUtil.getParityBit(id17);
          return id17 + parityBit;
      }else if(idCardNo.length==18){
          return idCardNo;
      }else{
          return null;
      }
  }
}

export {
	idCardNoUtil
}
